I will start by saying I have no personal experience on either of these boats.
I personally like the look of the Catalina better. The Hunter 38 has a slightly lower PHRF rating which means, in theory, it might sail faster. Looking at the numbers (from sailboatdata.com ) the Hunter carries more sail and is a bit lighter which is likely why it has the faster rating. The ratings are close enough however that the condition of the sails would be more of a differentiation. Having more sail area means the Hunter will need to reef earlier and will be more tender than the Catalina. There was a comment about the Hunter being easier to sail because of the B&R rig and arch, I really don't know why that would make it easier. The arch gets the main sheet out of the cockpit and is great for adding solar panels and bimini but doesn't really do much for sail trim. It actually raises the boom, which pushes the sail area up higher, adding to overturning moment, making the boat more tender. The B&R rig, with large swept back spreaders, limits how far you can let the main out when sailing dead down wind. The big advantage of the B&R rig is there is no back stay, which allows a large roach in the main (more sail area) however, since the boat you are looking at has mainsail furling, the main has a flat roach (the leach is straight) so the B&R rig has no benefit. In fact, if the Catalina does not have mainsail furling, it will likely sail faster than the Hunter. If it were me, I would not buy a boat in this size range with in mast furling. A traditional main, with multiple reef points and lazy jacks, is more versatile and just as easy to handle.
It looks like both boats came with options for shoal draft (wing keels). The Catalina deep keel is deeper than the Hunter which might limit your anchoring locations, although it looks like you are in California so that may not be as much of a concern as on the East Coast.
You should evaluate the fit and finish of each boat yourself as well as the layout on deck and below. The maintenance and condition of the boat probably dictates the cost difference as much as anything. If you are really stuck on the decision you could have a surveyor go over both boats then review the condition of them to help you decide. Maybe the surveyor would give you a discount if you get two boats done together.
Good luck and welcome to sailing!